Keifer Bly:
So I just changed my torrc file contactinfo to Keifer dot bly at gmail dot com
Do I need to restart my relay for this to take effect?
restart is not required but you need to reload it
Will doing this make it more difficult for spammers to reach my address?
yes, probably (for some spammers/harvesters) but updating the contactinfo will not remove older contactinfo strings since they are all archived and so spammers can still see the former (non-obfuscated) version of that contactinfo string
Will that make it more difficult for people who legitimately want to contact the relay operator who aren’t spammers to contact me?
If they want to do it automatically: yes if they do it manually: probably not